Home / 420,832.08-580,363.65-328,963.50

Finding the Fourth Proportional to 420,832.08, 580,363.65 and 328,963.50

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Solution

The fourth proportional to 420,832.08, 580,363.65 and 328,963.50 is: 453,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,832.08 : 580,363.65 = 328,963.50 : x
  2. Step 2: Convert to fraction form
    420,832.08/580,363.65 = 328,963.50/x
  3. Step 3: Cross multiply
    420,832.08x = 580,363.65 × 328,963.50
  4. Step 4: Simplify right side
    420,832.08x = 190,918,457,576.78
  5. Step 5: Solve for x
    x = 190,918,457,576.78/420,832.08
  6. Step 6: Final answer
    x = 453,668.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.